Optical recording medium having recording capacity information and method for indicating recording capacity
a technology of optical recording medium and information about recording capacity, which is applied in the direction of digital signal error detection/correction, instruments, recording signal processing, etc., can solve problems such as preventing recording or reproduction of an accurate amount of data
Inactive Publication Date: 2007-04-03
LG ELECTRONICS INC
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Benefits of technology
The present invention is about an optical recording medium that has a way to show how much data it can hold. This helps to determine the capacity of the recording medium. The invention also allows for the recording capacity to be shown on a specific area of the recording medium, making it easier to identify. Overall, this invention helps to improve the performance and functionality of optical recording media.
Problems solved by technology
In those instances, the disk recording capacity can not be known only from a size of track pitch or disk, which impedes recording or reproduction of an accurate amount of data.
Method used
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[0024]Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The present invention indicates an initial recording capacity (or a recording capacity determined by default), and a varied recording capacity if the recording capacity is varied. The initial recording capacity may be determined by the manufacturer or the user. The initial recording capacity is indicated in a particular area of the optical disk, for example, in the lead-in area. In this instance, the initial recording capacity may be indicated in an unused area of an embossed data zone, or a rewritable data zone of the lead-in area. In the case the initial recording capacity is indicated in the embossed data zone of the lead-in area according to the present invention, as shown in FIG. 5A, the initial recording capacity can be indicated, for example, on unused bytes (such as bytes of BP 17˜31, or 33˜47) of a first sector con...
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Abstract
An optical recording medium and a method for recording information to indicate a recording capacity of the recording medium, are provided. The method includes recording information to indicate a varied recording capacity on a particular area of the optical recording medium, if an initial recording capacity of the optical recording medium is varied based upon at least one of an assignment and a variance of a spare area for a defect management, the spare area being assigned to an inner area and / or an outer area of the optical recording medium, or being varied toward an inner direction with respect to an outer position.
Description
CROSS-REFERENCE[0001]The present application is a continuation of U.S. patent application Ser. No. 09 / 387,853 (now U.S. Pat. No. 6,788,631 B1 issued Sep. 7, 2004) filed on Sep. 1, 1999 for which priority is claimed under 35 U.S.C. § 120, the entire contents of this application are herein fully incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a rewritable optical recording medium system, and more particularly, to an optical recording medium having an indication of a recording capacity, and a method for indicating a recording capacity of an optical recording medium.[0004]2. Background of the Invention[0005]In general, the optical recording media are sorted as a ROM type for read only, a WORM type for writing once, and a rewritable type for repetitive writing. In disks which are rewritable freely and repetitively, there are CD-RW (Rewritable Compact Disc), and rewritable digital versatile disc (DVD-RW, DVD-RAM, D...
Claims
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IPC IPC(8): G11B7/00G11B5/09
CPCG11B7/00736G11B20/1217G11B20/1883G11B2020/1229G11B2020/1278G11B2020/1292G11B2020/1893G11B2220/20G11B2220/216G11B2220/2537G11B2220/2562
InventorPARK, YONG CHEOLJEONG, KYU HWA
OwnerLG ELECTRONICS INC